Servus Venandi
Magistrate
Not to get too political, but right now in my country we have protesters being thrown into unmarked vans by law enforcement.
I halfway object to this characterization, but the last time I responded to something similar, it ended with a threat of moderator wrath.
On the subject at hand, horror and sex are ubiquitous to human history, and have been depicted in art and fiction for the duration, sometimes together. There might be something "wrong" with some of us, but I doubt the percentage is any higher than for any other arbitrary group of disparate people sharing an interest.
Otherwise, I think I agree with you. No statistics, but I'd wager that empathy for victims in erotic art (or porn, whatever the delineation there might be) is important for most of us. Even stuff that isn't created with any particular goal of making a sympathetic character, still triggers that reaction in my brain alongside the obvious "damn, she's hot." Good erotic fantasy works like good comedy—it contains just enough reality to make you think twice, but it's still sexy/funny.